Zobrazeno 1 - 10
of 88
pro vyhledávání: '"Hélène Gérard"'
Publikováno v:
ChemistrySelect. 7
Publikováno v:
ChemPhysChem. 22:788-795
An inner-sphere disproportionation mechanism of the Co(I) precursor CoCl(PPh3 )3 is described through a Density Functional Theory study. The essential role of oleylamine in this process is unravelled. A detailed analysis of the electronic structure o
Autor:
Léo Birbaum, Isabelle Chataigner, Xavier Moreau, Guillaume Vincent, Hélène Gérard, Hassan Oulyadi, Laurent Gillard, Michaël De Paolis
Publikováno v:
Chemistry-A European Journal
Chemistry-A European Journal, Wiley-VCH Verlag, 2019, 25 (60), pp.13688-13693. ⟨10.1002/chem.201903455⟩
Chemistry-A European Journal, Wiley-VCH Verlag, 2019, 25 (60), pp.13688-13693. ⟨10.1002/chem.201903455⟩
International audience; 3‐Nitroindoles are easily reacted with highly substituted γ‐allenoates in the presence of a commercially available phosphine catalyst. For instance, allenoates derived from biomolecules such as amino and deoxycholic acids
Autor:
Benoit de Courcy, Baptiste Lecachey, Hélène Gérard, Jacques Maddaluno, Hassan Oulyadi, Anne Harisson-Marchand, Laetitia Palais, Muriel Durandetti, Emmanuel Vrancken, Samira Bouauli, Jean-Marc Campagne
Publikováno v:
Chemistry-A European Journal
Chemistry-A European Journal, Wiley-VCH Verlag, 2021, 27 (29), pp.7942-7950. ⟨10.1002/chem.202100596⟩
Chemistry-A European Journal, Wiley-VCH Verlag, 2021, 27 (29), pp.7942-7950. ⟨10.1002/chem.202100596⟩
International audience; The reaction of a silyl dienolate, a Cu(II) salt and TBAT yielding the corresponding copper dienolate is addressed. A combined NMR and cyclic voltammetry analysis first highlight the role of TBAT in the Cu(II) to Cu(I) reducti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::14da0c679818f07e86cd291fe0d3090e
https://hal.archives-ouvertes.fr/hal-03440070/document
https://hal.archives-ouvertes.fr/hal-03440070/document
Autor:
Fabrice Chemla, Karen de la Vega-Hernández, Hélène Gérard, Martin Oestreich, Juan Sanz García, Stéphanie Halbert, Alejandro Perez-Luna, Carolin Fopp, Olivier Jackowski, Frédéric Guégan, Franck Ferreira, Elise Romain
Publikováno v:
Advanced Synthesis and Catalysis
Advanced Synthesis and Catalysis, Wiley-VCH Verlag, 2021, 363 (10), pp.2634-2647. ⟨10.1002/adsc.202001566⟩
Advanced Synthesis and Catalysis, Wiley-VCH Verlag, 2021, 363 (10), pp.2634-2647. ⟨10.1002/adsc.202001566⟩
International audience; Aryl- and hetaryl-substituted acetylenes undergo regio- and stereoselective silylzincation by reaction with [(Me3Si)3Si]2Zn in the presence of Et2Zn (10–110 mol%) as additive. The distinctive feature of this addition across
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7149f4d835e21a2f8b9d16e43c576174
https://hal.sorbonne-universite.fr/hal-03236531/document
https://hal.sorbonne-universite.fr/hal-03236531/document
Autor:
Ourania Makrygenni, Alain Shum Cheong Sing, Hélène Gérard, Sabrina Taourit, Richard Villanneau, Anna Proust, Franck Launay, Louise Vanmairis
Publikováno v:
European Journal of Inorganic Chemistry
European Journal of Inorganic Chemistry, Wiley-VCH Verlag, 2020, 2020 (7), pp.605-612. ⟨10.1002/ejic.202000111⟩
European Journal of Inorganic Chemistry, Wiley-VCH Verlag, 2019, ⟨10.1002/ejic.201901152⟩
European Journal of Inorganic Chemistry, Wiley-VCH Verlag, 2020, 2020 (7), pp.605-612. ⟨10.1002/ejic.202000111⟩
European Journal of Inorganic Chemistry, Wiley-VCH Verlag, 2019, ⟨10.1002/ejic.201901152⟩
International audience; The catalytic performances of three organophosphonyle/arsonyle derivatives of POMs were evaluated for the epoxidation of limonene in acetonitrile, using aqueous H2O2 as the oxidant. All three W-based POMs catalysts operated wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d7de5061d9ac40ea86c929e27ea31564
https://hal.univ-reunion.fr/hal-03199915
https://hal.univ-reunion.fr/hal-03199915
Publikováno v:
Journal of Molecular Modeling. 26
A simple numerical experiment is presented which allows tuning the lithium electrophilicity, a parameter strongly affected by the solvent and additives coordination. A series of coordination of Li+ to carbanions or polydentate nucleophiles is examine
Publikováno v:
Chemistry Africa. 1:79-86
Electronic contributions in electronic transitions and energetic data associated to the Mg-substitution in chlorophyll by three transition metals: chrom (Cr2+), iron (Fe2+) and nickel (Ni2+) have been studied theoretically using density functional th
Autor:
Charlie Blons, Renata Marcia de Figueiredo, Jimmy Lauberteaux, Jean-Marc Campagne, Hélène Gérard, Marc Mauduit, Christophe Crévisy, Olivier Baslé, Stéphanie Halbert
Publikováno v:
ChemCatChem
ChemCatChem, Wiley, 2019, 11 (16), pp.4108-4115. ⟨10.1002/cctc.201900233⟩
ChemCatChem, 2019, 11 (16), pp.4108-4115. ⟨10.1002/cctc.201900233⟩
ChemCatChem, Wiley, 2019, 11 (16), pp.4108-4115. ⟨10.1002/cctc.201900233⟩
ChemCatChem, 2019, 11 (16), pp.4108-4115. ⟨10.1002/cctc.201900233⟩
International audience; Four different catalytically active species are computationally examined in order to investigate the mechanism of Cu/DiPPAM-catalyzed 1,6-conjugate addition of dialkylzinc to acyclic dienones. A DiPPAM-bridged Cu(alkyl)-Zn(ace
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a513bc49f35ae725748fed869b0211d
https://hal-univ-rennes1.archives-ouvertes.fr/hal-02181830
https://hal-univ-rennes1.archives-ouvertes.fr/hal-02181830
Publikováno v:
Chemistry-A European Journal
Chemistry-A European Journal, Wiley-VCH Verlag, 2018, 24 (25), pp.6617-6624. ⟨10.1002/chem.201800099⟩
Chemistry-A European Journal, Wiley-VCH Verlag, 2018, 24 (25), pp.6617-6624. ⟨10.1002/chem.201800099⟩
International audience; Exchange of X (F, Cl, OMe) and a substituted enolate chain between SiMe3 and various CuI complexes was examined. Reaction mechanisms pass through a cyclic transition state in which the reaction coordinate is associated with ro